Template:Whitney1940
From Manifold Atlas
H. Whitney, On the theory of sphere-bundles, Proc. Nat. Acad. Sci. U. S. A. 26 (1940), 148–153. MR0001338 (1,220b) Zbl 0023.17603
H. Whitney, On the theory of sphere-bundles, Proc. Nat. Acad. Sci. U. S. A. 26 (1940), 148–153. MR0001338 (1,220b) Zbl 0023.17603